First interstellar detection of HNSO with column density (8 ± 1)×10^13 cm^{-2} and abundance ~6×10^{-10} relative to H2, proposed to form via NSO + H on icy grains.
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53 Pith papers cite this work. Polarity classification is still indexing.
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Spectroscopic observations of six low-mass, metal-poor SLSN host galaxies reveal slow stellar-wind-driven outflows with velocities 37-104 km/s and mass-loading factors below 1 in the earliest phases of star formation.
Second-epoch JWST/MIRI-MRS mid-IR spectra of SN 1987A show little overall dust evolution but inner equatorial ring fading, rapid ejecta line changes, some ER line fading, first mid-IR H2 from ejecta, and evidence that dense Fe-rich ejecta has reached the reverse shock.
Fermi-LAT data shows gamma-ray emission from low-luminosity AGN with the subthreshold population signal consistent with star-formation dominance and individually detected sources likely powered by jets via synchrotron self-Compton emission under weakly magnetized particle-dominated conditions.
A new estimator extracts squeezed-limit f_NL from the large-scale modulation of binned cosmic shear power spectra C_ℓ(z1,z2), validated on N-body simulations with a forecasted LSST precision of σ_fNL ≃ 44.
SN 2019vxm exhibits a TESS-captured early rise with power-law index 1.41 and a 3.3 sigma coincident X-ray event consistent with shock breakout in dense asymmetric circumstellar material from a massive progenitor.
JWST spectroscopy of SIMP 0136 shows variability from three atmospheric regions linked to layers with forsterite clouds and water, using PCA, model combinations, and two new mapping methods.
Neutrino-cooled collapsar disks in 3D GRMHD simulations lead to black hole equilibrium spins of a_eq ≈ 0.13, enabling 4-16x more powerful LGRB jets than non-radiative models.
First IXPE polarization measurement of GX 340+0 in normal branch yields PD 1.22±0.25% and PA 38±6°, consistent with origin in blackbody or Comptonized emission, with radio flux lower than in horizontal branch.
New high-redshift empirical T_e-based metallicity calibrations for strong-line ratios derived from direct oxygen abundances in 46 galaxies spanning z=1.4-8.7.
Two-stage LLM framework infers stellar parameters and ~20 elemental abundances from spectra, showing performance gains with increasing data volume.
SPH simulations find that disk mass and size after a Uranus-forming impact are robust to EOS choice while rock fraction is highly sensitive.
MujicΛ augments L-BFGS optimization with projection and rank-order matching to reconstruct Gaussian initial conditions from incomplete redshift surveys, achieving good agreement with true fields on Millennium simulation mocks.
Reassessment of 12 TTV claims finds only two systems with compelling unique solutions for the perturbing planet, six with multiple viable solutions, and two with weak evidence overall.
No choice of BDS merger-rate parameters is consistent with LVK event counts, redshifted-mass and distance distributions, strong-lensing non-detections, and the non-observation of the stochastic GW background.
Little Red Dots show no photometric or spectroscopic variability over months, creating a 5.9 sigma deficit relative to expectations for typical AGN and implying either super-Eddington accretion or no central black holes.
A CNN trained on single-line 2D spectra achieves 85% balanced accuracy at low S/N in HETDEX, recovers 93% of DESI-confirmed low-S/N LAEs, and allows lowering the S/N threshold to 4.8 while suppressing false positives.
A Hubble-like sequence of galaxy morphologies exists by redshift 4, with low-mass galaxies as persistent star-forming disks and massive galaxies following either stable disk or rapid compaction-quenching paths.
The authors deliver a combined SBCR for stars below ~16 solar masses spanning V-Ks from -0.9 to 2.1 mag with 0.025 mag scatter, plus a separate O-star relation, and verify it on an M33 eclipsing binary.
EP250827b/SN 2025wkm is a new X-ray flash–supernova whose long, soft X-ray burst and double-peaked, plateauing optical light curve are best explained by a magnetar central engine interacting with a low-mass circumstellar shell.
Morphological metrics in galaxy images suffer systematic biases from resolution, depth, and noise that can be quantified and corrected empirically, with new metrics proposed to reduce those effects.
Score-based diffusion models learn the empirical distribution of real LIGO noise to enable unbiased gravitational-wave parameter estimation under only an additivity assumption.
NOEMA observations of AB Aur reveal a HCO+ molecular bridge interpreted as gas accretion through the dust cavity.
Optical STELLA fits of SN 2023uqf imply a short PeV-acceleration window whose neutrino timing and energy scale are compatible with IceCube alert IC-231004A, though expected event counts are tiny.
citing papers explorer
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Discovery of thionylimide, HNSO, in space: the first N-, S- and O-bearing interstellar molecule
First interstellar detection of HNSO with column density (8 ± 1)×10^13 cm^{-2} and abundance ~6×10^{-10} relative to H2, proposed to form via NSO + H on icy grains.
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Witnessing the onset of stellar winds in Super-Luminous Supernova Hosts: implications for star-formation-driven outflows in low and high-redshift galaxies
Spectroscopic observations of six low-mass, metal-poor SLSN host galaxies reveal slow stellar-wind-driven outflows with velocities 37-104 km/s and mass-loading factors below 1 in the earliest phases of star formation.
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The evolution of the mid-infrared spectrum of SN 1987A observed with the JWST/MIRI-MRS
Second-epoch JWST/MIRI-MRS mid-IR spectra of SN 1987A show little overall dust evolution but inner equatorial ring fading, rapid ejecta line changes, some ER line fading, first mid-IR H2 from ejecta, and evidence that dense Fe-rich ejecta has reached the reverse shock.
-
Characterizing the Gamma-ray Emission from Low-Luminosity AGN
Fermi-LAT data shows gamma-ray emission from low-luminosity AGN with the subthreshold population signal consistent with star-formation dominance and individually detected sources likely powered by jets via synchrotron self-Compton emission under weakly magnetized particle-dominated conditions.
-
Squeezed Limit non-Gaussianity Estimation with Cosmic Shear
A new estimator extracts squeezed-limit f_NL from the large-scale modulation of binned cosmic shear power spectra C_ℓ(z1,z2), validated on N-body simulations with a forecasted LSST precision of σ_fNL ≃ 44.
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SN 2019vxm: A Shocking Coincidence between Fermi and TESS
SN 2019vxm exhibits a TESS-captured early rise with power-law index 1.41 and a 3.3 sigma coincident X-ray event consistent with shock breakout in dense asymmetric circumstellar material from a massive progenitor.
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Mapping atmospheric features of the planetary-mass brown dwarf SIMP 0136 with JWST NIRISS
JWST spectroscopy of SIMP 0136 shows variability from three atmospheric regions linked to layers with forsterite clouds and water, using PCA, model combinations, and two new mapping methods.
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Black Hole Spin-down in Collapsars in 3D Neutrino Transport GRMHD Simulations
Neutrino-cooled collapsar disks in 3D GRMHD simulations lead to black hole equilibrium spins of a_eq ≈ 0.13, enabling 4-16x more powerful LGRB jets than non-radiative models.
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X-ray and Radio Campaign of the Z-source GX 340+0 II: the X-ray polarization in the normal branch
First IXPE polarization measurement of GX 340+0 in normal branch yields PD 1.22±0.25% and PA 38±6°, consistent with origin in blackbody or Comptonized emission, with radio flux lower than in horizontal branch.
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Direct T_e-based Metallicities of z=2-9 Galaxies with JWST/NIRSpec: Empirical Metallicity Calibrations Applicable from Reionization to Cosmic Noon
New high-redshift empirical T_e-based metallicity calibrations for strong-line ratios derived from direct oxygen abundances in 46 galaxies spanning z=1.4-8.7.
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Spectra as Language: Large Language Models for Scalable Stellar Parameter and Abundance Inference
Two-stage LLM framework infers stellar parameters and ~20 elemental abundances from spectra, showing performance gains with increasing data volume.
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Dependence on the Equation of State in SPH Simulations of Proto-Uranian Disk Formation from a Giant Impact
SPH simulations find that disk mass and size after a Uranus-forming impact are robust to EOS choice while rock fraction is highly sensitive.
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Mujic{\Lambda}: Reconstructing Initial Conditions from Incomplete Redshift Surveys with Projected Optimization
MujicΛ augments L-BFGS optimization with projection and rank-order matching to reconstruct Gaussian initial conditions from incomplete redshift surveys, achieving good agreement with true fields on Millennium simulation mocks.
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TTV-Not-So-Fast: Uniqueness and Degeneracy in Perturbing Planet Parameters
Reassessment of 12 TTV claims finds only two systems with compelling unique solutions for the perturbing planet, six with multiple viable solutions, and two with weak evidence overall.
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Could the high-mass black holes from gravitational-wave observations be explained by lensing?
No choice of BDS merger-rate parameters is consistent with LVK event counts, redshifted-mass and distance distributions, strong-lensing non-detections, and the non-observation of the stochastic GW background.
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How I Wonder What You Are -- JWST's Little Red Dots do not TWINKLE
Little Red Dots show no photometric or spectroscopic variability over months, creating a 5.9 sigma deficit relative to expectations for typical AGN and implying either super-Eddington accretion or no central black holes.
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Enhancing Ly{\alpha} Emitter Identification in HETDEX with a Convolutional Neural Network
A CNN trained on single-line 2D spectra achieves 85% balanced accuracy at low S/N in HETDEX, recovers 93% of DESI-confirmed low-S/N LAEs, and allows lowering the S/N threshold to 4.8 while suppressing false positives.
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The Hubble sequence in JWST CEERS from unbiased galaxy morphologies
A Hubble-like sequence of galaxy morphologies exists by redshift 4, with low-mass galaxies as persistent star-forming disks and massive galaxies following either stable disk or rapid compaction-quenching paths.
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Toward Early-type Eclipsing Binaries as Extragalactic Milestones: First Calibration of the SBCR from O- and B-type Stars in Detached Eclipsing Binaries
The authors deliver a combined SBCR for stars below ~16 solar masses spanning V-Ks from -0.9 to 2.1 mag with 0.025 mag scatter, plus a separate O-star relation, and verify it on an M33 eclipsing binary.
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EP250827b/SN 2025wkm: An X-ray Flash-Supernova Powered by a Central Engine and Circumstellar Interaction
EP250827b/SN 2025wkm is a new X-ray flash–supernova whose long, soft X-ray burst and double-peaked, plateauing optical light curve are best explained by a magnetar central engine interacting with a low-mass circumstellar shell.
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statmorph-lsst: Quantifying and correcting morphological biases in galaxy surveys
Morphological metrics in galaxy images suffer systematic biases from resolution, depth, and noise that can be quantified and corrected empirically, with new metrics proposed to reduce those effects.
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Gravitational-Wave Parameter Estimation in non-Gaussian noise using Score-Based Likelihood Characterization
Score-based diffusion models learn the empirical distribution of real LIGO noise to enable unbiased gravitational-wave parameter estimation under only an additivity assumption.
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Gas accretion within the dust cavity in AB Aur
NOEMA observations of AB Aur reveal a HCO+ molecular bridge interpreted as gas accretion through the dust cavity.
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Interaction-powered Type Ibn Supernovae as a Transient PeVatron Candidate: The Case of SN 2023uqf
Optical STELLA fits of SN 2023uqf imply a short PeV-acceleration window whose neutrino timing and energy scale are compatible with IceCube alert IC-231004A, though expected event counts are tiny.
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An SMA Molecular Inventory of the Edge-on Protoplanetary Disk Gomez's Hamburger
SMA wideband survey detects 11 molecules in Gomez's Hamburger disk with column densities consistent with other large protoplanetary disks and no definitive evidence of gravitational instability.
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Physical Parameters of 146 Contact Binaries Derived from Light and Radial Velocity Curves
Derives physical parameters for 146 contact binaries, identifies extreme low and high mass ratio systems, and supports formation via angular momentum loss from detached binaries.
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ArchGEM: an Advanced Data Analysis Tool for Analyzing Scattered Light Noise in LIGO
ArchGEM automates detection and physical characterization of scattered light noise arches in Advanced LIGO spectrograms via prominence-based peak finding and Gaussian Mixture Model clustering, reporting typical frequencies of 15-40 Hz and surface velocities of 0.2-0.5 μm/s across O3 and O4.
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Towards a Robust Estimate of the Solar Photospheric Poynting Flux and Helicity Flux
Three standard techniques for calculating solar surface energy and helicity injection produce inconsistent results on the same data because of differing ad hoc treatments of Doppler and transverse velocities.
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The $R$-Process Alliance: Actinide Abundances, Variation, and Evolution in Metal-Poor Stars
Thorium abundances in 47 metal-poor stars indicate that 68% of r-process events produce Th/Eu ratios varying by only ~30%, with 5% showing variations up to a factor of ~10.
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The Cosmic Web and Its Filaments: Neutrino Mass from Topology and Persistent Homology
Persistent homology of filaments in neutrino cosmologies reveals mass-dependent topological signatures detectable at the few-percent level, strongest at z~2.
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Beyond Mass and Multiscale Environments: What Shapes Low Surface Brightness Galaxies? Evidence from MaNGA
LSB galaxies exhibit lower stellar surface density, star formation rates, and metallicities than mass- and environment-matched HSB galaxies, indicating that internal evolution dominates over large-scale environment in shaping their properties.
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What's the (RV) Point? A $3.5\times$ Enhancement in Super-Jupiters with Saturn-like Periods from a Critical Observation
One critical radial-velocity point bridging a multi-year instrument gap multiplies recovery of long-period super-Jupiters by up to 3.5× in injection-recovery tests.
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Searching for Contact Binaries with LAMOST and TESS
A TESS-LAMOST search produces a catalog of 1,281 contact binary candidates including 266 newly reported systems.
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Measurements of quasar proximity zones with the Ly$\alpha$ forest of DESI Y1 quasars
DESI quasar-pair observations show gas overdensity near quasars drives stronger Lyα absorption than ionization alone, with no detected dependence on foreground quasar luminosity.
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Non-thermal Synchrotron Emission and Polarization Signatures during Black Hole Flux Eruptions
Non-thermal electrons with anisotropic pitch angles during flux eruptions produce flux outbursts, localized brightening, and suppressed linear polarization in black hole disk images.
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Lagrangian versus Eulerian Methods for Toroidally-Magnetized Isothermal Disks
Lagrangian methods reproduce high-resolution Eulerian behavior for toroidally-magnetized disks and continue to lose flux at low resolution by following thin layers, unlike Eulerian methods that show no evolution.
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Evaluating the Prospects of Cyclic Deconvolution across 312 Pulsars
uGMRT ranks as the best current instrument for cyclic spectroscopy of pulsars, with the 80-300 MHz band optimal for most of the 312 sources examined.
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BOOM and Babamul: a real-time, multi-survey, optical alert broker system operating at scale
BOOM is a new high-throughput alert broker using Rust, MongoDB, Valkey and Kafka that matches prior ZTF features at ~7x speed and is extended as Babamul for LSST's 20 million nightly alerts.
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Characterizing the host galaxies and delay times of Ca-rich gap transients vs 91bg-like SNe and normal Type Ia SNe
Ca-rich gap transients and 91bg-like SNe occupy similar massive quiescent host parameter space with peak delay times around 10^4 Myr, unlike normal Type Ia (~10^3 Myr) and Type II (~10 Myr) SNe.
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A method for statistical research on binary stars using radial velocities
DVCD is a new algorithm for binary star radial velocity analysis that is claimed to be 10,000-100,000 times faster than existing approaches and reveals decreasing binary fractions with lower log g and higher metallicity in APOGEE DR16 subsets.
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Discovery and Timing of 49 Pulsars from the Arecibo 327-MHz Drift Survey
Reports timing solutions and basic properties for 49 pulsars (18 new) from the AO327 survey, with emission feature notes and model comparisons for distances.
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McFACTS II: Mass Ratio--Effective Spin Relationship of Black Hole Mergers in the AGN Channel
Monte Carlo simulations of AGN-disk black hole mergers identify dense, moderately short-lived disks, a steep initial mass function, and mostly prograde orbits as the parameter combination that reproduces the observed (q, χ_eff) anti-correlation.
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Turbulence properties and kinetic signatures of electron in Kelvin-Helmholtz waves during a geomagnetic storm
MMS observations document turbulence spectra and electron-scale reconnection signatures inside Kelvin-Helmholtz waves during a geomagnetic storm.
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The effect of spectral resolution on biosignature detection via reflected light observations of the Earth through time
Nominal HWO resolutions suffice to detect key biosignatures across Archean to Phanerozoic Earth atmospheres, with O3 enabling indirect low-O2 detection and NIR resolution preventing CO2-CO false positives.
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Sparks II: Panchromatic SED modeling and galaxy physical properties across the starburst to post-starburst sequence
Panchromatic SED modeling yields SFRs with smaller offset and scatter than optical-only fits for starburst to post-starburst galaxies, while Prospector AGN torus models distinguish AGN but underpredict luminosities by an order of magnitude.
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The ZTF-ULTRASAT experiment: Characterizing the non-transients in ULTRASAT's high cadence survey
ZTF high-cadence data shows RR Lyrae stars and flaring sources can mimic UV transients, with pre-existing ML catalogs offering a concrete mitigation approach.
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Early Planet Formation in Embedded Disks (eDisk). XIX. Structures of molecular outflows
ALMA data classify 15 protostellar CO outflows into three morphological types, revealing misalignments and time variability in outflow directions.
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Changing-Look Active Galactic Nuclei in SDSS-V: Host-Galaxy Properties and Black-Hole Scaling Relations
CL-AGNs follow the usual M_BH-sigma_* and M_BH-M_* scaling relations of inactive galaxies with typical host stellar populations, indicating they are a phase of normal AGN activity rather than a distinct population.
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Close-in sub-Neptunes reveal the past rotation history of their host stars: atmospheric evolution of planets in the HD3167 and K2-32 planetary systems
Bayesian atmospheric escape modeling constrained by observed planet radii infers high early irradiation (40-130x solar) for HD3167 and low (0.5-4x solar) for K2-32 at 150 Myr.
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The supersoft X-ray transient ASASSN-16oh as a thermonuclear runaway without mass ejection
ASASSN-16oh is interpreted as a non-ejective thermonuclear runaway on a 1.1 solar-mass white dwarf accreting at 3.5-5e-7 solar masses per year, with luminosity suppressed by an optically thick disk.